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Data as of Nov 9, 2026

204.242.80.0/21

Anonymizer · ISP proxy

Windstream Communications LLC · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
AS7029
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Sep 28, 2026
its first announcement on record
IPv4 market

Path

Announced by AS7029 since Sep 28, 2026 · 6 wk ago
1 · Holder
Cogent Communications, LLC
record created Dec 20, 1994
2 · Leased from
Rackdog
for its owner Cogent Communications, LLC
3 · Announced by
AS7029 Windstream Communications LLC
since Sep 28, 2026 · 6 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 204.242.80.0/21/24s
Rackdog
2,048100%
8
Leased from

Owners leasing their own space

NameIn 204.242.80.0/21/24s
Cogent Communications, LLC
2,048100%
8

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

204.242.80.0/21

From the registry to its use

  1. Dec 20, 1994
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    204.240.0.0/14
  2. Mar 17, 2022– today
    Announced
    AS6079 RCN
    as part of 204.242.80.0/20
    204.242.80.0/20
  3. May 27, 2026
    Assigned
    RCN
    Reassigned
    204.242.0.0/16
  4. Sep 28, 2026– today
    Announced
    AS7029 Windstream Communications LLC
    Internet provider
  5. Oct 2, 2026
    Route object
    Rackdog
    RADB route object for AS7029 Windstream Communications LLC, maintainer MAINT-AS398465
  6. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeLeased fromHolderRPKI
204.242.80.0/20
since Mar 2022
AS6079ISP proxyIP broker RackdogCogent Communications, LLC
204.240.0.0/14
since May 2005
AS174Internet providerCogent Communications, LLC

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
204.240.0.0/14262,144COGENT-204-240-14Cogent Communications, LLC (COGC) · USDirect AllocationDec 20, 1994abuse@cogentco.com
└ 204.242.0.0/1665,536RACKDOG-CGNT-NET-33RCN (C11605228) · USReassignedMay 27, 2026abuse@cogentco.com
via COGENT-204-240-14

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Cogent Communications, LLC
Handle
COGC
Range
204.240.0.0/14
Registration type
Direct Allocation
Record created
Dec 20, 1994
Legacy
yes
Origin network

AS7029

US
Name
Windstream Communications LLC
Type
Internet provider
Registered
Jul 30, 1996
Domain
uniti.com
Website
www.uniti.com/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed